Note: Instead of plesk-php71-fpm it is possible to use a different PHP handler, which is displayed in the PHP Handler list, which can be viewed by following the steps in Retrieve the PHP Handler table

Note: It might be possible, that Plesk does not allow managing service plans via the web interface, this can be the case for example for Web Admin Edition or Web App Edition, it is possible to manage them via command line utilities, as described below.